The enclosure is constructed out of 18-mm, 13-ply birch plywood finished with EVCoat. Also includes professional-grade castors, and combination pole mount receptacle for threaded and unthreaded loudspeaker poles.

The ETX 18 Sub is hands down one of my favorite powered Subs out on the market. Its unbelievably powerful, with 2000 watts of power on tap for any need. The fact that they have suspension points makes it awesome for a permanent installation like in churches and venues. Also the fact that you can tune each individual speaker to the room. These subs are without a doubt m go to recommendation for any application.

This is a real hands on product review from Andy @ Sam Ash Indianapolis